Back to overview

CVE-2026-45822

MEDIUM
6.6
CVSS 4.0
Description
decode-uri-component through 0.4.1 is vulnerable to denial of service. The decode() function splits input on '%' producing N tokens and calls decodeComponents(), exhibiting super-linear parsing time: 200 '%ab' tokens takes approximately 0.7s, 700 tokens approximately 6s, and 1400 tokens approximately 33s. An attacker can cause significant CPU consumption and event-loop blocking via crafted input.

Metadata

CVE ID
CVE-2026-45822
State
PUBLISHED
Assigner
seal
Reserved
2026-05-13 12:03 UTC
Published
2026-06-30 08:05 UTC
Last updated
2026-06-30 08:05 UTC
Primary CWE
CWE-400
CWE-400 Uncontrolled Resource Consumption
Vendor / Product
SamVerschueren / decode-uri-component
Sources
cve.org  ·  NVD

Severity & Metrics

6.6 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
Affected products (1)
VendorProductPlatformVersions
SamVerschueren decode-uri-component Linux,macOS,Windows 0.1.0 < 0.5.0
Weakness (CWE)
CWESourceDescription
CWE-400 cna CWE-400 Uncontrolled Resource Consumption
CWE-407 cna CWE-407 Inefficient Algorithmic Complexity
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.6 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/S:N/AU:Y/R:U/V:D/RE:M/U:Amber
References (3)
Back to overview